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The Flashhas found its Thinker.

The 100alum Neil Sandilands will play DC villain Clifford Devoe, a.k.a.

The Thinker, a metahuman with a mega mind who embarks on a season-long battle with The Flash.

A true genius, hes devised an intricate plan to fix all that he deems wrong with humanity.

The way were explaining it is the fastest man alive versus the fastest mind alive.

A big thing this year is were really trying to lighten the tone a little bit.

Last year it got pretty dark and we want to get back to the jokes.

But hes not the only one Team Flash will have to deal with next season.

His mission is to prevent any inter-dimensional traveler from threatening life on his planet especially his daughters.

In other words, Cisco (Carlos Valdes) is in trouble!

Team Flash has certainly been struggling in his absence.

We pick up season 4, Iris has focused her energy on being the leader of Team Flash.

She steps up and leads the team, which is really, really cool.

Yeah, to a degree, Patton said.

Yes, she does.

But who did you see?

The Flashreturns Tuesday, Oct. 10 at 8 p.m.

ET on The CW.